Interestingly, a breakdown of the top brass and who owns what: Mark Zuckerberg owns 28.4 percent of Facebook, while co-founder Dustin Moskovitz owns just 7 percent. This makes the two billionaires many times over. However, chief operating officer Sheryl Sandberg owns less than 1 percent –-- which is even less than chief financial officer David Ebersman, who was instrumental in Facebook getting this far.

The big question of the day can't be answered. What is Facebook ultimately worth? The best guess out of the media today is that the social network is worth $82 billion --- based on tracked figures over the past events --- which falls well within the market estimates

Andy Borowitz noted earlier on Twitter: "The only way Facebook is worth $100 billion is if all of those sheep in FarmVille are real."

Those who were hoping for Facebook to rocket to the top of the IPO ship will be disappointed. Google's initial public offering may have been a meagre $1.67 billion in comparison, but Infineon AG floated at more than $5.8 billion in 2000. The Facebook IPO is a major event for Wall Street, which is currently being hit by layoffs as firms downsize.

But remember, this is only the filing stage. We have to wait until May --- a rough guesstimate --- to see how well the company fares in the public trading limelight.

But unlike Facebook dependents --- like Zynga, which dropped by over 10 percent below its IPO price during its first trading day in December --- it is expected Facebook's share price will soar. According to the filing, Zynga is around 12 percent of Facebook's business.

If Facebook's shares go up, it also bodes well for its dependents, too.